.msite {
  margin-top: 40px;
}
.m-nav-item .mNav {
  margin: 20px 0 10px;
  padding-bottom: 20px;
  border-bottom: 1px solid #f5f5f5;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.m-nav-item .mNav .fl {
  font-size: 16px;
}
.m-nav-item .mNav .fr {
  font-size: 14px;
  color: #999;
}
.m-nav-item .m-subNav {
  display: flex;
  flex-wrap: wrap;
}
.m-nav-item .child-nav {
  position: relative;
  width: 48.5%;
  margin-right: 3%;
  margin-bottom: 10px;
}
.m-nav-item .child-nav:nth-of-type(2n) {
  margin-right: 0;
}
.m-nav-item .child-nav > a {
  position: relative;
  display: block;
  height: 40px;
  line-height: 40px;
  border-radius: 5px;
  text-align: center;
  background-color: #f5f5f5;
}
.m-nav-item .child-nav > a i {
  position: absolute;
  right: 3%;
  top: 50%;
  transform: translateY(-50%);
  display: block;
  font-size: 12px;
}
.m-nav-item .child-nav .three-nav {
  position: absolute;
  top: 50px;
  width: 100%;
  background-color: #999;
  z-index: 2;
  display: none;
  border-radius: 5px;
  box-shadow: 0 5px 20px rgba(174, 174, 174, 0.5);
  padding: 10px 0;
}
.m-nav-item .child-nav .three-nav::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: #999;
}
.m-nav-item .child-nav .three-nav > a {
  display: block;
  line-height: 20px;
  color: #fff;
  padding: 4px 10px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}
.m-nav-item .has-menu {
  margin-bottom: 10px;
}
.m-nav-item .has-menu-open > a {
  background-color: #999;
  color: #fff;
}
.m-nav-item .has-menu-open .three-nav {
  display: block;
}